I don't know much about the Baby, but wikipedia says it had 32 words of memory and 7 instructions. Surely that won't be hard to emulate but will be an absolute pain to use. No wonder it only ran three different programs. There's an emulator here: https://www.davidsharp.com/baby/
I’ve had a fantasy about the same approach for computer science: learn assembly on the Manchester baby, write a C compiler for the pdp-11, etc.
How realistic would the first bit be? Are there simulators and programming manuals for the Manchester baby?